With the 2017 “snap” general election now only days away, Frontier has been examining a potentially rich, and under- analysed, source of predictive information – constituency-level betting odds.

These suggest that the Prime Minister may have been more successful in reinforcing her vote in existing Conservative seats than in pursuing her ambition to make big inroads into Labour ones, but that Labour – despite a narrowing in the opinion poll gap – has been shoring up its own core support without making headway elsewhere.